Question

Which is not an advantage of radio telescopes over optical telescopes?

Answer 1

The correct answer is option B. The radio telescopes have better resolution than optical telescopes.  

This statement is false. Because optical telescopes have better resolution than radio telescopes. A radio telescope is capable of showing only single pixel of the image while optical telescope show the complete image with so many hundreds-thousands pixels in it. 

Answer 2

Answer: The correct answer is Option B.

Explanation:

Radio telescopes is an instrument which is used to detect the radio emissions from the sky.

Optical telescopes is an instrument which collects visible light that bring it to a focus, amplify it and it is used for the analysis by various instruments.

Advantages of radio telescopes over optical telescopes are:

1. It is unaffected by Earth's atmospheric conditions.
2. It can work all day and all night, which means it can work 24 hours a day.
3. It is used to save a lot of money which means it is less expensive.

Radio telescope does not have a better resolution because resolution depends on the wavelength of the light and this telescope absorbs weak light waves.

Therefore, the correct answer is Option B.